Severe hypersensitivity reactions, including anaphylaxis, generalized urticaria, and hypotension, tachycardia, and bronchospasm, have been reported following local instillation or injection of methylene blue
Many insurers will cover these injections when prescribed by our healthcare providers to treat a diagnosed vitamin B12 deficiency or related conditions such as pernicious anemia, gastrointestinal issues affecting nutrient absorption, or certain neurological disorders
As a prebiotic, its function is to selectively feed beneficial bacteria rather than directly introducing organisms

[7] [8] When to contact your GP: Persistent difficulty achieving or maintaining erections sufficient for sexual activity ED that causes distress or affects your relationship ED accompanied by other symptoms (chest pain, shortness of breath, extreme fatigue) Sudden onset of ED, particularly in younger men When to seek emergency care: Erections lasting longer than 4 hours (priapism) call 999 or go to A&E New severe chest pain during sexual activity call 999 Your GP will conduct a thorough assessment, which typically includes: Medical history exploring cardiovascular risk factors, diabetes, neurological conditions, hormonal issues, and psychological factors Medication review identifying drugs that may contribute to ED Physical examination assessing cardiovascular health, genital examination if indicated Blood tests HbA1c or fasting glucose, fasting lipids, morning (7-11 am) total testosterone with repeat if low/borderline, and consideration of LH/prolactin if hypogonadism is suspected This assessment is crucial because ED can be an early warning sign of cardiovascular disease

Deficiency in vitamin B12 can cause symptoms such as fatigue, weakness, numbness or tingling, memory issues, and mood changes